The article explores how important transfer points are in public transport networks by using a method called transferable utility cooperative games. These transfer points are clusters of stops where passengers can easily switch between routes. The researchers used a concept from game theory called Shapley value to measure the importance of each transfer point. They found that the higher the Shapley value, the more crucial the transfer point is. To handle the complex calculations for large networks, they used a Monte Carlo approximation method. A real-world case study was conducted to show that their model works effectively.